Article snippet: new poll from The Des Moines Register and CNN. The poll showed that Sanders was the first choice for 20% of would-be caucusgoers, a 5% increase from November, when the Register last polled the state. He was followed closely by Elizabeth Warren at 17%, Pete Buttigieg at 16% and Joe Biden at 15%. The poll has a margin of error of plus or minus 3.7 percentage points. The results are the latest sign that Sanders — lifted by his loyal supporters and an unchanging message — has strong campaign momentum heading into the Feb. 3 Iowa caucuses and has rebounded politically after having a heart attack in October. The poll was less kind to Buttigieg, who held a dominant lead in the last Register poll, with 25% support. That poll showed Warren at 16% and Biden at 15%. To say the poll was highly anticipated is an understatement. The poll is the first significant survey from Iowa in nearly two months, a drought that has left a murky picture of the Democratic primary race in a state that conducts its first-in-the-nation caucuses. Iowans famously break late, sometimes making their final decision in the weeks and days before the caucuses occur, and every campaign will be scrutinizing the results for signs that their candidate is strengthening — and that their rivals are weakening — heading into the final stretch. The poll numbers are the latest evidence that the race in Iowa remains fluid and winnable for the top four candidates, who have all crisscrossed the state in recent wee... Link to the full article to read more